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wyler00
Level I

Sum of all rows into a list

I'm trying to take the sum of all of my rows and add it to a list.  So, the sum of row 1 will be item 1, sum of row 2 will be item 2, etc.  Is there an easy way to do this using jsl?

2 ACCEPTED SOLUTIONS

Accepted Solutions
txnelson
Super User

Re: Sum of all rows into a list

Here is one way to do it.  Others may have better methods

Names Default To Here( 1 );
dt = Current Data Table();
sumMatrix = [];
For Each( {col}, dt << get column names( string, numeric ),
	sumMatrix = sumMatrix || Col Sum( Column( dt, col ) )
);
Jim

View solution in original post

jthi
Super User

Re: Sum of all rows into a list

You can also use matrix calculations, below is one option

Names Default To Here(1); 

dt = open("$SAMPLE_DATA/Big Class.jmp");

m = dt << get as matrix;

sums = V Sum(m`);

tolist = As List(sums)[1];
-Jarmo

View solution in original post

3 REPLIES 3
txnelson
Super User

Re: Sum of all rows into a list

Here is one way to do it.  Others may have better methods

Names Default To Here( 1 );
dt = Current Data Table();
sumMatrix = [];
For Each( {col}, dt << get column names( string, numeric ),
	sumMatrix = sumMatrix || Col Sum( Column( dt, col ) )
);
Jim
wyler00
Level I

Re: Sum of all rows into a list

Thank you.  Both of your solutions work great.

jthi
Super User

Re: Sum of all rows into a list

You can also use matrix calculations, below is one option

Names Default To Here(1); 

dt = open("$SAMPLE_DATA/Big Class.jmp");

m = dt << get as matrix;

sums = V Sum(m`);

tolist = As List(sums)[1];
-Jarmo